break-off vs play up

break-off

verb
  • To play the first shot in a game of snooker 

noun
  • That which breaks off, or is broken off 

  • A break, discontinuance, or interruption 

  • The first shot in a game of snooker or other cue-game 

play up

verb
  • To play more vigorously. 

  • To make or attempt to make something appear more important, likely, or obvious; to showcase or highlight. 

  • To be unfaithful to a lover; to cheat; used with on. 

  • To misbehave. 

How often have the words break-off and play up occurred in a corpus of books? (source: Google Ngram Viewer )